When flotation machine is working, with the rotation of the impeller, groove pulp from all around and via the bottom of groove is inhaled into between the impeller blades by the impeller bottom, at the same time, by the blower for the low pressure air by hollow shaft and impeller air distributor also enter it. After pulp mixing air fully, it is pusher from the upper part of the impeller to the oblique, and the stator stabilizes the flow and directs it into the whole trough. Bubbles rise to the foam stability region, after concentration process, the foam from the overflow weir gravity overflow then into the bubble bath, and part of the pulp flow to the lower part of impeller, then through the impeller stirring, to mix mineralization bubble formation, the rest of the pulp flow to the next trough, until eventually residue.
Flotation machine is also called flotation cell, which is used in flotation separation process. It is equipped with automatic level control and electronic control device, easy to adjust, and impeller stirring force is strong.
The increase of the dispersion area of the slurry is beneficial to the improvement of the aeration capacity, and also to the weakening of the degree of floral turning. It has the advantages of simple structure, large handling capacity, convenient operation and easy maintenance. Reduction of precipitation, installed with automatic control of the level of the electronic device, easy to adjust the fine foam, flotation effect is good.
Application area / Applicable materials: non-ferrous metals, coal fluorite, talc lead, zinc, molybdenum, aluminum and other metal minerals; Quartz, floatable gold, silver, copper, iron and other optional minerals.
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XCF and KYF flotation cell are advanced air-inflation, mechanical agitation flotation devices. It is developed mainly reference the flotation devices that currently used in mines. It is designed fully considered about the flotation charactors and processing conditions, absorb the advantages of mechanical agitation flotation cells, avoid the shortcomings and defects of the other devices.
Advanced design of structure; reliable operation; lower energy consumption; the flotation cell adopts U-shaped tank, hollow shaft inflatable and suspension stator, using a new impeller, this is a kind of cone impeller with blade sloping, similar to the high speed centrifugal pump wheels, large pulp capacity, small pressure head, low energy consumption and simple structure.
Flotation machineis one of the important equipment in mine processing, and its main purpose is to separate minerals by the equipment features. Because of too many types of flotation machine, it is not easy to judge the best kind of flotation cell for mineral processing. For example, the mechanical agitation type flotation machine is divided into inflatable and self-suction flotation machine. Due to the ore properties, reagents and operation, etc., we cannot make sure which flotation tank has higher separation index.
In the air inflation/ air suction volume,JJF, SF, BF is self-suction flotation cell, and the air volume is 0.9-1.0m3/m2min; KYF, XCF is air inflation flotation cell, and the air volume can be automatically adjusted basing on need. In addition, the max. air inflation volume of KYF flotation cell can reach 2. 0m3/m2min with good dispersion.
In equipment installation, JJF flotation cells need ladder installation and foam pump for returning mid ore; KYF, XCF need air-blower; but SF, BF dont need them either, so these kinds of flotation cells are convenient for installation.
Xinhai series flotation cellsare suitable for Non-ferrous metals, ferrous metals and some non-metallic. If you dont know how to select the suitable one, please contact with Xinhai Mining Machinery Company.
Flotation is the most widely used beneficiation method for fine materials, and almost all ores can be separated by flotation. Another important application is to reduce ash in fine coal and to remove fine pyrite from coal. The flotation machine is mechanical equipment for realizing the froth flotation process and separating target minerals from ore. At present nearly 2 billion tons of ore in the world are treated by the froth flotation process. According to rough statistics, about 90% of non-ferrous minerals are recovered by the flotation method, accounting for 50% proportion in the field of ferrous metal mineral separation.
Suitable material Sulfide minerals, oxide minerals, non-metallic minerals, silicate minerals, nonmetallic salt minerals, soluble salt minerals, rare earth minerals, etc., including gold, silver, copper, lead, zinc, galena, zinc blende, chalcopyrite, pyroxene, molybdenite, nickel pyrite, malachite, cerussite, smithsonite, hematite, cassiterite, wolframite, Ilmenite, beryl, spodumene, brimstone, graphite, diamond, quartz, mica, feldspar, fluorite, apatite, barite, and so on.
The flotation machine is composed of single or multiple flotation cells, by agitating and inflating the chemical reagent treated slurry, some mineral ore particles are adhered to the foam and float up, and then be scraped out, while the rest remains in the slurry.
Industrial flotation machines can be divided into 5 classes, mechanical agitation flotation machine, pneumatic flotation machines, flotation column, airlift flotation machine, froth separation flotation machines. At present, the mechanical flotation machine is the most commonly used in industry, followed by the column flotation which has recently set off hot spot, the pneumatic type and froth separation are not common.
Commonly used flotation models TankCell series, Wemco series, Agitair series, SuperCells, RCS(reactor cell system), Denver laboratory flotation, KYF, and XCF series flotation devices, laboratory flotation machine. Well-known flotation machine manufacturers have Outotec, Flsmidth, Metso, BGRIMM, JXSC flotation machine china; column flotation manufacturers or models have Jameson, CPT, Counter-flow inflatable flotation column.
Main parts: slurry tank, agitator device, mineralized froth discharging system, electromotor, etc. 1. Slurry tank: mainly consist of a slurry inlet, slurry tank and a gate device for controlling the slurry volume, welded with steel plate. 2. Agitator: slurry tank have a series of the mechanically driven impeller that disperses the air into the agitated pulp. 3. Mineralized forth discharging: the useful minerals are enriched in the foam, scraped out, dehydrated, and dried into concentrate products.
Whatever flotation machines design is selected, it must accomplish a series of complicated industrial requirements. 1. Good mixing function. a qualified flotation machine should mix the slurry uniformly and maintain the particles especially the target mineral particle in suspension with the pulp, maximum the froth-mineral probability. 2. Adequate ventilation and distribution of fine bubbles. Except for the flotation machine performance, the frother type and dosage also matter to the distribution of the bubbles. 3. Appropriate agitation control in the froth beds. It is should pay importance to keep froth zones smoothly, which ensures the suspension of collector coated particle.
1. The throughput capabilities of various cell designs will vary with the ore property (beneficiability, size, density, grade, pulp, PH, etc.). In the case of ore easy separated, and a small amount of air inflation required, may choose a mechanical flotation machine; if the minerals with coarse size, proper to choose the KYF, BS-F, ore CLF type; what's more, when in case of ore easy separated, fine particles, high grade, low PH, flotation column is the best, especially in the concentrating process. 2. There is a difference between the process of concentrating, rough selecting. Thin froth layer is better for separate mineral particles, thus may not choose a large air inflation flotation machine.
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